Package io.github.olyutorskii.aletojio.shrink

Class BitSwitcher

java.lang.Object

io.github.olyutorskii.aletojio.shrink.BitSwitcher

All Implemented Interfaces:

RndInt32

public class BitSwitcher
extends Object
implements RndInt32

Switch output bits from 2 input streams.

Another stream is required to provide the switching. If switching-bit is 0, output 1st input stream bit. If switching-bit is 1, output 2nd input stream bit.

Random number output throughput decreases 1/3.

Example

• input stream 1st 01010101
• input stream 2nd 11001100
• switch stream 00001111

will be output 01011100

Constructor Summary

Constructors

Constructor	Description
BitSwitcher(RndInt32 sw, RndInt32 rnd0, RndInt32 rnd1)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	nextInt32()	Return next random number as 32bit int with random sign-bit.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BitSwitcher

public BitSwitcher(RndInt32 sw,
 RndInt32 rnd0,
 RndInt32 rnd1)
            throws NullPointerException

Constructor.

Parameters:

sw - switch stream

rnd0 - input stream 1st

rnd1 - input stream 2nd

Throws:

NullPointerException - stream is null

Method Details

nextInt32

public int nextInt32()

Return next random number as 32bit int with random sign-bit.

Specified by:

nextInt32 in interface RndInt32

Returns:

random number